Home / 39,190.14-58,778.55-12,895.02

Finding the Fourth Proportional to 39,190.14, 58,778.55 and 12,895.02

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Solution

The fourth proportional to 39,190.14, 58,778.55 and 12,895.02 is: 19,340.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,190.14 : 58,778.55 = 12,895.02 : x
  2. Step 2: Convert to fraction form
    39,190.14/58,778.55 = 12,895.02/x
  3. Step 3: Cross multiply
    39,190.14x = 58,778.55 × 12,895.02
  4. Step 4: Simplify right side
    39,190.14x = 757,950,577.82
  5. Step 5: Solve for x
    x = 757,950,577.82/39,190.14
  6. Step 6: Final answer
    x = 19,340.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.